Merge branch 'kvm-arm64/pv-cpuid' into kvmarm/next

* kvm-arm64/pv-cpuid:
  : Paravirtualized implementation ID, courtesy of Shameer Kolothum
  :
  : Big-little has historically been a pain in the ass to virtualize. The
  : implementation ID (MIDR, REVIDR, AIDR) of a vCPU can change at the whim
  : of vCPU scheduling. This can be particularly annoying when the guest
  : needs to know the underlying implementation to mitigate errata.
  :
  : "Hyperscalers" face a similar scheduling problem, where VMs may freely
  : migrate between hosts in a pool of heterogenous hardware. And yes, our
  : server-class friends are equally riddled with errata too.
  :
  : In absence of an architected solution to this wart on the ecosystem,
  : introduce support for paravirtualizing the implementation exposed
  : to a VM, allowing the VMM to describe the pool of implementations that a
  : VM may be exposed to due to scheduling/migration.
  :
  : Userspace is expected to intercept and handle these hypercalls using the
  : SMCCC filter UAPI, should it choose to do so.
  smccc: kvm_guest: Fix kernel builds for 32 bit arm
  KVM: selftests: Add test for KVM_REG_ARM_VENDOR_HYP_BMAP_2
  smccc/kvm_guest: Enable errata based on implementation CPUs
  arm64: Make  _midr_in_range_list() an exported function
  KVM: arm64: Introduce KVM_REG_ARM_VENDOR_HYP_BMAP_2
  KVM: arm64: Specify hypercall ABI for retrieving target implementations
  arm64: Modify _midr_range() functions to read MIDR/REVIDR internally

Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

diff --cc arch/arm64/include/asm/kvm_host.h
Simple merge

diff --cc arch/arm64/include/uapi/asm/kvm.h
Simple merge

diff --cc arch/arm64/kernel/cpufeature.c
Simple merge

diff --cc arch/arm64/kvm/vgic/vgic-v3.c
index 73a8a7df4bd23c59ed4c98b828fc3dc329dfd519,87a8a96c7a41e3b6e65105e771a4cf7789b92040..b9ad7c42c5b01c9b890132a67c34a16a5ada14c3
--- 1/arch/arm64/kvm/vgic/vgic-v3.c
--- 2/arch/arm64/kvm/vgic/vgic-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-v3.c
@@@ -631,8 -632,8 +631,8 @@@ static const struct midr_range broken_s
  
  static bool vgic_v3_broken_seis(void)
  {
 -      return ((kvm_vgic_global_state.ich_vtr_el2 & ICH_VTR_SEIS_MASK) &&
 +      return ((kvm_vgic_global_state.ich_vtr_el2 & ICH_VTR_EL2_SEIS) &&
-               is_midr_in_range_list(read_cpuid_id(), broken_seis));
+               is_midr_in_range_list(broken_seis));
  }
  
  /**